diff options
Diffstat (limited to 'drivers/scsi')
41 files changed, 139 insertions, 158 deletions
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index fb14014..afb262b 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -1840,7 +1840,7 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, (scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) { if (srb->sc_data_direction == DMA_TO_DEVICE || srb->sc_data_direction == DMA_BIDIRECTIONAL) { struct scatterlist *sg = scsi_sglist(srb); - char *buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + char *buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; memcpy(tw_dev->generic_buffer_virt[request_id], buf, sg->length); kunmap_atomic(buf - sg->offset, KM_IRQ0); } @@ -1919,7 +1919,7 @@ static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int re char *buf; unsigned long flags = 0; local_irq_save(flags); - buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; memcpy(buf, tw_dev->generic_buffer_virt[request_id], sg->length); kunmap_atomic(buf - sg->offset, KM_IRQ0); local_irq_restore(flags); diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index a64153b..59716eb 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -1469,7 +1469,7 @@ static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id, struct scatterlist *sg = scsi_sglist(cmd); local_irq_save(flags); - buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; transfer_len = min(sg->length, len); memcpy(buf, data, transfer_len); diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 988f0bc..2597209 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -298,8 +298,7 @@ static __inline__ void initialize_SCp(Scsi_Cmnd * cmd) if (cmd->use_sg) { cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer; cmd->SCp.buffers_residual = cmd->use_sg - 1; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+ - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); cmd->SCp.this_residual = cmd->SCp.buffer->length; } else { cmd->SCp.buffer = NULL; @@ -2143,8 +2142,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { ++cmd->SCp.buffer; --cmd->SCp.buffers_residual; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+ - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); dprintk(NDEBUG_INFORMATION, ("scsi%d : %d bytes and %d buffers left\n", instance->host_no, cmd->SCp.this_residual, cmd->SCp.buffers_residual)); } /* diff --git a/drivers/scsi/NCR53C9x.c b/drivers/scsi/NCR53C9x.c index 96e8e29..5b0efc9 100644 --- a/drivers/scsi/NCR53C9x.c +++ b/drivers/scsi/NCR53C9x.c @@ -927,7 +927,7 @@ static void esp_get_dmabufs(struct NCR_ESP *esp, Scsi_Cmnd *sp) esp->dma_mmu_get_scsi_sgl(esp, sp); else sp->SCp.ptr = - (char *) virt_to_phys((page_address(sp->SCp.buffer->page) + sp->SCp.buffer->offset)); + (char *) virt_to_phys(sg_virt(sp->SCp.buffer)); } } @@ -1748,7 +1748,7 @@ static inline void advance_sg(struct NCR_ESP *esp, Scsi_Cmnd *sp) if (esp->dma_advance_sg) esp->dma_advance_sg (sp); else - sp->SCp.ptr = (char *) virt_to_phys((page_address(sp->SCp.buffer->page) + sp->SCp.buffer->offset)); + sp->SCp.ptr = (char *) virt_to_phys(sg_virt(sp->SCp.buffer)); } diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c index 3168a17..137d065 100644 --- a/drivers/scsi/NCR53c406a.c +++ b/drivers/scsi/NCR53c406a.c @@ -875,8 +875,7 @@ static void NCR53c406a_intr(void *dev_id) outb(TRANSFER_INFO | DMA_OP, CMD_REG); #if USE_PIO scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) { - NCR53c406a_pio_write(page_address(sg->page) + sg->offset, - sg->length); + NCR53c406a_pio_write(sg_virt(sg), sg->length); } REG0; #endif /* USE_PIO */ @@ -897,8 +896,7 @@ static void NCR53c406a_intr(void *dev_id) outb(TRANSFER_INFO | DMA_OP, CMD_REG); #if USE_PIO scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) { - NCR53c406a_pio_read(page_address(sg->page) + sg->offset, - sg->length); + NCR53c406a_pio_read(sg_virt(sg), sg->length); } REG0; #endif /* USE_PIO */ diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 80e448d..a77ab8d 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -356,7 +356,7 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne int transfer_len; struct scatterlist *sg = scsi_sglist(scsicmd); - buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; transfer_len = min(sg->length, len + offset); transfer_len -= offset; diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index a58c265..ea8c699 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -613,7 +613,7 @@ struct aha152x_scdata { #define SCNEXT(SCpnt) SCDATA(SCpnt)->next #define SCSEM(SCpnt) SCDATA(SCpnt)->done -#define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset)) +#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer))) /* state handling */ static void seldi_run(struct Scsi_Host *shpnt); diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c index 961a188..bbcc2c5 100644 --- a/drivers/scsi/aha1542.c +++ b/drivers/scsi/aha1542.c @@ -49,7 +49,7 @@ #include "aha1542.h" #define SCSI_BUF_PA(address) isa_virt_to_bus(address) -#define SCSI_SG_PA(sgent) (isa_page_to_bus((sgent)->page) + (sgent)->offset) +#define SCSI_SG_PA(sgent) (isa_page_to_bus(sg_page((sgent))) + (sgent)->offset) static void BAD_DMA(void *address, unsigned int length) { @@ -66,8 +66,7 @@ static void BAD_SG_DMA(Scsi_Cmnd * SCpnt, int badseg) { printk(KERN_CRIT "sgpnt[%d:%d] page %p/0x%llx length %u\n", - badseg, nseg, - page_address(sgp->page) + sgp->offset, + badseg, nseg, sg_virt(sgp), (unsigned long long)SCSI_SG_PA(sgp), sgp->length); @@ -712,8 +711,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *)) printk(KERN_CRIT "Bad segment list supplied to aha1542.c (%d, %d)\n", SCpnt->use_sg, i); scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) { printk(KERN_CRIT "%d: %p %d\n", i, - (page_address(sg->page) + - sg->offset), sg->length); + sg_virt(sg), sg->length); }; printk(KERN_CRIT "cptr %x: ", (unsigned int) cptr); ptr = (unsigned char *) &cptr[i]; diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index f817775..f7a2528 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -1343,7 +1343,7 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \ /* 4 bytes: Areca io control code */ sg = scsi_sglist(cmd); - buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; if (scsi_sg_count(cmd) > 1) { retvalue = ARCMSR_MESSAGE_FAIL; goto message_out; @@ -1593,7 +1593,7 @@ static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb, strncpy(&inqdata[32], "R001", 4); /* Product Revision */ sg = scsi_sglist(cmd); - buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; memcpy(buffer, inqdata, sizeof(inqdata)); sg = scsi_sglist(cmd); diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c index 52d0b87..d178098 100644 --- a/drivers/scsi/atari_NCR5380.c +++ b/drivers/scsi/atari_NCR5380.c @@ -515,8 +515,7 @@ static inline void initialize_SCp(Scsi_Cmnd *cmd) if (cmd->use_sg) { cmd->SCp.buffer = (struct scatterlist *)cmd->request_buffer; cmd->SCp.buffers_residual = cmd->use_sg - 1; - cmd->SCp.ptr = (char *)page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); cmd->SCp.this_residual = cmd->SCp.buffer->length; /* ++roman: Try to merge some scatter-buffers if they are at * contiguous physical addresses. @@ -2054,8 +2053,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) ++cmd->SCp.buffer; --cmd->SCp.buffers_residual; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); /* ++roman: Try to merge some scatter-buffers if * they are at contiguous physical addresses. */ diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c index 96180bb..982c509 100644 --- a/drivers/scsi/eata_pio.c +++ b/drivers/scsi/eata_pio.c @@ -172,7 +172,7 @@ static void IncStat(struct scsi_pointer *SCp, unsigned int Increment) SCp->Status = 0; else { SCp->buffer++; - SCp->ptr = page_address(SCp->buffer->page) + SCp->buffer->offset; + SCp->ptr = sg_virt(SCp->buffer); SCp->this_residual = SCp->buffer->length; } } @@ -410,7 +410,7 @@ static int eata_pio_queue(struct scsi_cmnd *cmd, } else { cmd->SCp.buffer = cmd->request_buffer; cmd->SCp.buffers_residual = cmd->use_sg; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); cmd->SCp.this_residual = cmd->SCp.buffer->length; } cmd->SCp.Status = (cmd->SCp.this_residual != 0); /* TRUE as long as bytes diff --git a/drivers/scsi/fd_mcs.c b/drivers/scsi/fd_mcs.c index 668569e..8335b60 100644 --- a/drivers/scsi/fd_mcs.c +++ b/drivers/scsi/fd_mcs.c @@ -973,7 +973,7 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id) if (current_SC->SCp.buffers_residual) { --current_SC->SCp.buffers_residual; ++current_SC->SCp.buffer; - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset; + current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer); current_SC->SCp.this_residual = current_SC->SCp.buffer->length; } else break; @@ -1006,7 +1006,7 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id) if (!current_SC->SCp.this_residual && current_SC->SCp.buffers_residual) { --current_SC->SCp.buffers_residual; ++current_SC->SCp.buffer; - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset; + current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer); current_SC->SCp.this_residual = current_SC->SCp.buffer->length; } } @@ -1109,7 +1109,7 @@ static int fd_mcs_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *)) if (current_SC->use_sg) { current_SC->SCp.buffer = (struct scatterlist *) current_SC->request_buffer; - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset; + current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer); current_SC->SCp.this_residual = current_SC->SCp.buffer->length; current_SC->SCp.buffers_residual = current_SC->use_sg - 1; } else { diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c index 5d282e6..2cd6b49 100644 --- a/drivers/scsi/fdomain.c +++ b/drivers/scsi/fdomain.c @@ -1321,7 +1321,7 @@ static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id) if (current_SC->SCp.buffers_residual) { --current_SC->SCp.buffers_residual; ++current_SC->SCp.buffer; - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset; + current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer); current_SC->SCp.this_residual = current_SC->SCp.buffer->length; } else break; @@ -1354,7 +1354,7 @@ static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id) && current_SC->SCp.buffers_residual) { --current_SC->SCp.buffers_residual; ++current_SC->SCp.buffer; - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset; + current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer); current_SC->SCp.this_residual = current_SC->SCp.buffer->length; } } @@ -1439,8 +1439,7 @@ static int fdomain_16x0_queue(struct scsi_cmnd *SCpnt, if (scsi_sg_count(current_SC)) { current_SC->SCp.buffer = scsi_sglist(current_SC); - current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) - + current_SC->SCp.buffer->offset; + current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer); current_SC->SCp.this_residual = current_SC->SCp.buffer->length; current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1; } else { diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 3ac080e..5ab3ce7 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -2374,18 +2374,18 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, if (cpsum+cpnow > cpcount) cpnow = cpcount - cpsum; cpsum += cpnow; - if (!sl->page) { + if (!sg_page(sl)) { printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n", ha->hanum); return; } local_irq_save(flags); - address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset; + address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset; if (to_buffer) memcpy(buffer, address, cpnow); else memcpy(address, buffer, cpnow); - flush_dcache_page(sl->page); + flush_dcache_page(sg_page(sl)); kunmap_atomic(address, KM_BIO_SRC_IRQ); local_irq_restore(flags); if (cpsum == cpcount) diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c index 714e627..db004a4 100644 --- a/drivers/scsi/ibmmca.c +++ b/drivers/scsi/ibmmca.c @@ -1828,7 +1828,7 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) BUG_ON(scsi_sg_count(cmd) > 16); scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) { - ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg->page) + sg->offset); + ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg_page(sg)) + sg->offset); ld(shpnt)[ldn].sge[i].byte_length = sg->length; } scb->enable |= IM_POINTER_TO_LIST; diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 252d180..8d0244c 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -175,18 +175,18 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne while (bcount) { count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(pc->sg->page)) { + if (PageHighMem(sg_page(pc->sg))) { unsigned long flags; local_irq_save(flags); - buf = kmap_atomic(pc->sg->page, KM_IRQ0) + + buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + pc->sg->offset; drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count); kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); local_irq_restore(flags); } else { - buf = page_address(pc->sg->page) + pc->sg->offset; + buf = sg_virt(pc->sg); drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count); } @@ -212,18 +212,18 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign while (bcount) { count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(pc->sg->page)) { + if (PageHighMem(sg_page(pc->sg))) { unsigned long flags; local_irq_save(flags); - buf = kmap_atomic(pc->sg->page, KM_IRQ0) + + buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + pc->sg->offset; drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count); kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); local_irq_restore(flags); } else { - buf = page_address(pc->sg->page) + pc->sg->offset; + buf = sg_virt(pc->sg); drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count); } diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c index 74cdc1f..a3d0c6b 100644 --- a/drivers/scsi/imm.c +++ b/drivers/scsi/imm.c @@ -705,9 +705,7 @@ static int imm_completion(struct scsi_cmnd *cmd) cmd->SCp.buffer++; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = - page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); /* * Make sure that we transfer even number of bytes @@ -844,9 +842,7 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd) cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = - page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); } else { /* else fill the only available buffer */ cmd->SCp.buffer = NULL; diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c index ab7cbf3..c8b452f 100644 --- a/drivers/scsi/in2000.c +++ b/drivers/scsi/in2000.c @@ -372,7 +372,7 @@ static int in2000_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *)) if (cmd->use_sg) { cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer; cmd->SCp.buffers_residual = cmd->use_sg - 1; - cmd->SCp.ptr = (char *) page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); cmd->SCp.this_residual = cmd->SCp.buffer->length; } else { cmd->SCp.buffer = NULL; @@ -764,7 +764,7 @@ static void transfer_bytes(Scsi_Cmnd * cmd, int data_in_dir) ++cmd->SCp.buffer; --cmd->SCp.buffers_residual; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); } /* Set up hardware registers */ diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index c316a0b..439b97a 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -2872,6 +2872,7 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) } scatterlist = sglist->scatterlist; + sg_init_table(scatterlist, num_elem); sglist->order = order; sglist->num_sg = num_elem; @@ -2884,12 +2885,12 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) /* Free up what we already allocated */ for (j = i - 1; j >= 0; j--) - __free_pages(scatterlist[j].page, order); + __free_pages(sg_page(&scatterlist[j]), order); kfree(sglist); return NULL; } - scatterlist[i].page = page; + sg_set_page(&scatterlist[i], page); } return sglist; @@ -2910,7 +2911,7 @@ static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) int i; for (i = 0; i < sglist->num_sg; i++) - __free_pages(sglist->scatterlist[i].page, sglist->order); + __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); kfree(sglist); } @@ -2940,9 +2941,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, scatterlist = sglist->scatterlist; for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { - kaddr = kmap(scatterlist[i].page); + struct page *page = sg_page(&scatterlist[i]); + + kaddr = kmap(page); memcpy(kaddr, buffer, bsize_elem); - kunmap(scatterlist[i].page); + kunmap(page); scatterlist[i].length = bsize_elem; @@ -2953,9 +2956,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, } if (len % bsize_elem) { - kaddr = kmap(scatterlist[i].page); + struct page *page = sg_page(&scatterlist[i]); + + kaddr = kmap(page); memcpy(kaddr, buffer, len % bsize_elem); - kunmap(scatterlist[i].page); + kunmap(page); scatterlist[i].length = len % bsize_elem; } diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index edaac27..5c5a9b2 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -1515,7 +1515,7 @@ static int ips_is_passthru(struct scsi_cmnd *SC) /* kmap_atomic() ensures addressability of the user buffer.*/ /* local_irq_save() protects the KM_IRQ0 address slot. */ local_irq_save(flags); - buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; if (buffer && buffer[0] == 'C' && buffer[1] == 'O' && buffer[2] == 'P' && buffer[3] == 'P') { kunmap_atomic(buffer - sg->offset, KM_IRQ0); @@ -3523,7 +3523,7 @@ ips_scmd_buf_write(struct scsi_cmnd *scmd, void *data, unsigned int count) /* kmap_atomic() ensures addressability of the data buffer.*/ /* local_irq_save() protects the KM_IRQ0 address slot. */ local_irq_save(flags); - buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset; + buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset; memcpy(buffer, &cdata[xfer_cnt], min_cnt); kunmap_atomic(buffer - sg[i].offset, KM_IRQ0); local_irq_restore(flags); @@ -3556,7 +3556,7 @@ ips_scmd_buf_read(struct scsi_cmnd *scmd, void *data, unsigned int count) /* kmap_atomic() ensures addressability of the data buffer.*/ /* local_irq_save() protects the KM_IRQ0 address slot. */ local_irq_save(flags); - buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset; + buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset; memcpy(&cdata[xfer_cnt], buffer, min_cnt); kunmap_atomic(buffer - sg[i].offset, KM_IRQ0); local_irq_restore(flags); diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index a21455d..6ce4109 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -70,9 +70,7 @@ module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO); static inline void iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size) { - ibuf->sg.page = virt_to_page(vbuf); - ibuf->sg.offset = offset_in_page(vbuf); - ibuf->sg.length = size; + sg_init_one(&ibuf->sg, vbuf, size); ibuf->sent = 0; ibuf->use_sendmsg = 1; } @@ -80,13 +78,14 @@ iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size) static inline void iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg) { - ibuf->sg.page = sg->page; + sg_init_table(&ibuf->sg, 1); + sg_set_page(&ibuf->sg, sg_page(sg)); ibuf->sg.offset = sg->offset; ibuf->sg.length = sg->length; /* * Fastpath: sg element fits into single page */ - if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg->page)) + if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg))) ibuf->use_sendmsg = 0; else ibuf->use_sendmsg = 1; @@ -716,7 +715,7 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn) for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) { char *dest; - dest = kmap_atomic(sg[i].page, KM_SOFTIRQ0); + dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0); rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset, sg[i].length, offset); kunmap_atomic(dest, KM_SOFTIRQ0); @@ -1103,9 +1102,9 @@ iscsi_send(struct iscsi_conn *conn, struct iscsi_buf *buf, int size, int flags) * slab case. */ if (buf->use_sendmsg) - res = sock_no_sendpage(sk, buf->sg.page, offset, size, flags); + res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags); else - res = tcp_conn->sendpage(sk, buf->sg.page, offset, size, flags); + res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags); if (res >= 0) { conn->txdata_octets += res; diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 10d1aff..66c6520 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -658,7 +658,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy) struct scatterlist *sg; sg = scsi_sglist(cmd); - buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; + buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; memset(buf, 0, cmd->cmnd[4]); kunmap_atomic(buf - sg->offset, KM_IRQ0); @@ -1542,10 +1542,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) if( cmd->cmnd[0] == INQUIRY && !islogical ) { sgl = scsi_sglist(cmd); - if( sgl->page ) { - c = *(unsigned char *) - page_address((&sgl[0])->page) + - (&sgl[0])->offset; + if( sg_page(sgl) ) { + c = *(unsigned char *) sg_virt(&sgl[0]); } else { printk(KERN_WARNING "megaraid: invalid sg.\n"); diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 7877920..c892310 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -1584,10 +1584,8 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy) caddr_t vaddr; sgl = scsi_sglist(scp); - if (sgl->page) { - vaddr = (caddr_t) - (page_address((&sgl[0])->page) - + (&sgl[0])->offset); + if (sg_page(sgl)) { + vaddr = (caddr_t) sg_virt(&sgl[0]); memset(vaddr, 0, scp->cmnd[4]); } @@ -2328,10 +2326,8 @@ megaraid_mbox_dpc(unsigned long devp) && IS_RAID_CH(raid_dev, scb->dev_channel)) { sgl = scsi_sglist(scp); - if (sgl->page) { - c = *(unsigned char *) - (page_address((&sgl[0])->page) + - (&sgl[0])->offset); + if (sg_page(sgl)) { + c = *(unsigned char *) sg_virt(&sgl[0]); } else { con_log(CL_ANN, (KERN_WARNING "megaraid mailbox: invalid sg:%d\n", diff --git a/drivers/scsi/oktagon_esp.c b/drivers/scsi/oktagon_esp.c index 26a6d55..8e5eadb 100644 --- a/drivers/scsi/oktagon_esp.c +++ b/drivers/scsi/oktagon_esp.c @@ -550,8 +550,7 @@ void dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp) void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd *sp) { - sp->SCp.ptr = page_address(sp->SCp.buffer->page)+ - sp->SCp.buffer->offset; + sp->SCp.ptr = sg_virt(sp->SCp.buffer); } void dma_mmu_release_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp) @@ -564,8 +563,7 @@ void dma_mmu_release_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd *sp) void dma_advance_sg(Scsi_Cmnd *sp) { - sp->SCp.ptr = page_address(sp->SCp.buffer->page)+ - sp->SCp.buffer->offset; + sp->SCp.ptr = sg_virt(sp->SCp.buffer); } diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 331b789..1c5c4b6 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -542,7 +542,7 @@ static int osst_verify_frame(struct osst_tape * STp, int frame_seq_number, int q if (STp->raw) { if (STp->buffer->syscall_result) { for (i=0; i < STp->buffer->sg_segs; i++) - memset(page_address(STp->buffer->sg[i].page), + memset(page_address(sg_page(&STp->buffer->sg[i])), 0, STp->buffer->sg[i].length); strcpy(STp->buffer->b_data, "READ ERROR ON FRAME"); } else @@ -4437,7 +4437,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp) for (i = 0, b_size = 0; (i < STp->buffer->sg_segs) && ((b_size + STp->buffer->sg[i].length) <= OS_DATA_SIZE); b_size += STp->buffer->sg[i++].length); - STp->buffer->aux = (os_aux_t *) (page_address(STp->buffer->sg[i].page) + OS_DATA_SIZE - b_size); + STp->buffer->aux = (os_aux_t *) (page_address(sg_page(&STp->buffer->sg[i])) + OS_DATA_SIZE - b_size); #if DEBUG printk(OSST_DEB_MSG "%s:D: b_data points to %p in segment 0 at %p\n", name, STp->buffer->b_data, page_address(STp->buffer->sg[0].page)); @@ -5252,25 +5252,26 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma) /* Try to allocate the first segment up to OS_DATA_SIZE and the others big enough to reach the goal (code assumes no segments in place) */ for (b_size = OS_DATA_SIZE, order = OSST_FIRST_ORDER; b_size >= PAGE_SIZE; order--, b_size /= 2) { - STbuffer->sg[0].page = alloc_pages(priority, order); + struct page *page = alloc_pages(priority, order); + STbuffer->sg[0].offset = 0; - if (STbuffer->sg[0].page != NULL) { + if (page != NULL) { + sg_set_page(&STbuffer->sg[0], page); STbuffer->sg[0].length = b_size; - STbuffer->b_data = page_address(STbuffer->sg[0].page); + STbuffer->b_data = page_address(page); break; } } - if (STbuffer->sg[0].page == NULL) { + if (sg_page(&STbuffer->sg[0]) == NULL) { printk(KERN_NOTICE "osst :I: Can't allocate tape buffer main segment.\n"); return 0; } /* Got initial segment of 'bsize,order', continue with same size if possible, except for AUX */ for (segs=STbuffer->sg_segs=1, got=b_size; segs < max_segs && got < OS_FRAME_SIZE; ) { - STbuffer->sg[segs].page = - alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order); + struct page *page = alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order); STbuffer->sg[segs].offset = 0; - if (STbuffer->sg[segs].page == NULL) { + if (page == NULL) { if (OS_FRAME_SIZE - got <= (max_segs - segs) * b_size / 2 && order) { b_size /= 2; /* Large enough for the rest of the buffers */ order--; @@ -5284,6 +5285,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma) normalize_buffer(STbuffer); return 0; } + sg_set_page(&STbuffer->sg[segs], page); STbuffer->sg[segs].length = (OS_FRAME_SIZE - got <= PAGE_SIZE / 2) ? (OS_FRAME_SIZE - got) : b_size; got += STbuffer->sg[segs].length; STbuffer->buffer_size = got; @@ -5316,7 +5318,7 @@ static void normalize_buffer(struct osst_buffer *STbuffer) b_size < STbuffer->sg[i].length; b_size *= 2, order++); - __free_pages(STbuffer->sg[i].page, order); + __free_pages(sg_page(&STbuffer->sg[i]), order); STbuffer->buffer_size -= STbuffer->sg[i].length; } #if DEBUG @@ -5344,7 +5346,7 @@ static int append_to_buffer(const char __user *ubp, struct osst_buffer *st_bp, i for ( ; i < st_bp->sg_segs && do_count > 0; i++) { cnt = st_bp->sg[i].length - offset < do_count ? st_bp->sg[i].length - offset : do_count; - res = copy_from_user(page_address(st_bp->sg[i].page) + offset, ubp, cnt); + res = copy_from_user(page_address(sg_page(&st_bp->sg[i])) + offset, ubp, cnt); if (res) return (-EFAULT); do_count -= cnt; @@ -5377,7 +5379,7 @@ static int from_buffer(struct osst_buffer *st_bp, char __user *ubp, int do_count for ( ; i < st_bp->sg_segs && do_count > 0; i++) { cnt = st_bp->sg[i].length - offset < do_count ? st_bp->sg[i].length - offset : do_count; - res = copy_to_user(ubp, page_address(st_bp->sg[i].page) + offset, cnt); + res = copy_to_user(ubp, page_address(sg_page(&st_bp->sg[i])) + offset, cnt); if (res) return (-EFAULT); do_count -= cnt; @@ -5410,7 +5412,7 @@ static int osst_zero_buffer_tail(struct osst_buffer *st_bp) i < st_bp->sg_segs && do_count > 0; i++) { cnt = st_bp->sg[i].length - offset < do_count ? st_bp->sg[i].length - offset : do_count ; - memset(page_address(st_bp->sg[i].page) + offset, 0, cnt); + memset(page_address(sg_page(&st_bp->sg[i])) + offset, 0, cnt); do_count -= cnt; offset = 0; } @@ -5430,7 +5432,7 @@ static int osst_copy_to_buffer(struct osst_buffer *st_bp, unsigned char *ptr) for (i = 0; i < st_bp->sg_segs && do_count > 0; i++) { cnt = st_bp->sg[i].length < do_count ? st_bp->sg[i].length : do_count ; - memcpy(page_address(st_bp->sg[i].page), ptr, cnt); + memcpy(page_address(sg_page(&st_bp->sg[i])), ptr, cnt); do_count -= cnt; ptr += cnt; } @@ -5451,7 +5453,7 @@ static int osst_copy_from_buffer(struct osst_buffer *st_bp, unsigned char *ptr) for (i = 0; i < st_bp->sg_segs && do_count > 0; i++) { cnt = st_bp->sg[i].length < do_count ? st_bp->sg[i].length : do_count ; - memcpy(ptr, page_address(st_bp->sg[i].page), cnt); + memcpy(ptr, page_address(sg_page(&st_bp->sg[i])), cnt); do_count -= cnt; ptr += cnt; } diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h index 9839755..7db28cd 100644 --- a/drivers/scsi/pcmcia/nsp_cs.h +++ b/drivers/scsi/pcmcia/nsp_cs.h @@ -393,7 +393,7 @@ enum _burst_mode { #define MSG_EXT_SDTR 0x01 /* scatter-gather table */ -# define BUFFER_ADDR ((char *)((unsigned int)(SCpnt->SCp.buffer->page) + SCpnt->SCp.buffer->offset)) +# define BUFFER_ADDR ((char *)((sg_virt(SCpnt->SCp.buffer)))) #endif /*__nsp_cs__*/ /* end */ diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c index 190e2a7..969b938 100644 --- a/drivers/scsi/pcmcia/sym53c500_cs.c +++ b/drivers/scsi/pcmcia/sym53c500_cs.c @@ -443,8 +443,7 @@ SYM53C500_intr(int irq, void *dev_id) scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) { SYM53C500_pio_write(fast_pio, port_base, - page_address(sg->page) + sg->offset, - sg->length); + sg_virt(sg), sg->length); } REG0(port_base); } @@ -463,8 +462,7 @@ SYM53C500_intr(int irq, void *dev_id) scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) { SYM53C500_pio_read(fast_pio, port_base, - page_address(sg->page) + sg->offset, - sg->length); + sg_virt(sg), sg->length); } REG0(port_base); } diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index 67b6d76..67ee51a 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -608,9 +608,7 @@ static int ppa_completion(struct scsi_cmnd *cmd) cmd->SCp.buffer++; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = - page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); } } /* Now check to see if the drive is ready to comunicate */ @@ -756,8 +754,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd) /* if many buffers are available, start filling the first */ cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); } else { /* else fill the only available buffer */ cmd->SCp.buffer = NULL; diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c index 0f43d1d..03f19b8 100644 --- a/drivers/scsi/ps3rom.c +++ b/drivers/scsi/ps3rom.c @@ -111,14 +111,14 @@ static int fill_from_dev_buffer(struct scsi_cmnd *cmd, const void *buf) req_len = act_len = 0; scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) { if (active) { - kaddr = kmap_atomic(sgpnt->page, KM_IRQ0); + kaddr = kmap_atomic(sg_page(sgpnt), KM_IRQ0); len = sgpnt->length; if ((req_len + len) > buflen) { active = 0; len = buflen - req_len; } memcpy(kaddr + sgpnt->offset, buf + req_len, len); - flush_kernel_dcache_page(sgpnt->page); + flush_kernel_dcache_page(sg_page(sgpnt)); kunmap_atomic(kaddr, KM_IRQ0); act_len += len; } @@ -147,7 +147,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd *cmd, void *buf) req_len = fin = 0; scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) { - kaddr = kmap_atomic(sgpnt->page, KM_IRQ0); + kaddr = kmap_atomic(sg_page(sgpnt->page), KM_IRQ0); len = sgpnt->length; if ((req_len + len) > buflen) { len = buflen - req_len; diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c index 2bfbf26..de7b3bc 100644 --- a/drivers/scsi/qlogicfas408.c +++ b/drivers/scsi/qlogicfas408.c @@ -317,7 +317,7 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd) return ((priv->qabort == 1 ? DID_ABORT : DID_RESET) << 16); } - buf = page_address(sg->page) + sg->offset; + buf = sg_virt(sg); if (ql_pdma(priv, phase, buf, sg->length)) break; } diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 72ee4c9..46cae5a 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -625,7 +625,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr, scsi_for_each_sg(scp, sg, scp->use_sg, k) { if (active) { kaddr = (unsigned char *) - kmap_atomic(sg->page, KM_USER0); + kmap_atomic(sg_page(sg), KM_USER0); if (NULL == kaddr) return (DID_ERROR << 16); kaddr_off = (unsigned char *)kaddr + sg->offset; @@ -672,7 +672,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr, sg = scsi_sglist(scp); req_len = fin = 0; for (k = 0; k < scp->use_sg; ++k, sg = sg_next(sg)) { - kaddr = (unsigned char *)kmap_atomic(sg->page, KM_USER0); + kaddr = (unsigned char *)kmap_atomic(sg_page(sg), KM_USER0); if (NULL == kaddr) return -1; kaddr_off = (unsigned char *)kaddr + sg->offset; diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index aac8a02..61fdaf0 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -295,7 +295,7 @@ static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl, int i, err, nr_vecs = 0; for_each_sg(sgl, sg, nsegs, i) { - page = sg->page; + page = sg_page(sg); off = sg->offset; len = sg->length; data_len += len; @@ -764,7 +764,7 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask) if (unlikely(!sgl)) goto enomem; - memset(sgl, 0, sizeof(*sgl) * sgp->size); + sg_init_table(sgl, sgp->size); /* * first loop through, set initial index and return value @@ -781,6 +781,13 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask) sg_chain(prev, SCSI_MAX_SG_SEGMENTS, sgl); /* + * if we have nothing left, mark the last segment as + * end-of-list + */ + if (!left) + sg_mark_end(sgl, this); + + /* * don't allow subsequent mempool allocs to sleep, it would * violate the mempool principle. */ @@ -2353,7 +2360,7 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sgl, int sg_count, *offset = *offset - len_complete + sg->offset; /* Assumption: contiguous pages can be accessed as "page + i" */ - page = nth_page(sg->page, (*offset >> PAGE_SHIFT)); + page = nth_page(sg_page(sg), (*offset >> PAGE_SHIFT)); *offset &= ~PAGE_MASK; /* Bytes in this sg-entry from *offset to the end of the page */ diff --git a/drivers/scsi/seagate.c b/drivers/scsi/seagate.c index ce80fa9..b113244 100644 --- a/drivers/scsi/seagate.c +++ b/drivers/scsi/seagate.c @@ -999,14 +999,14 @@ connect_loop: for (i = 0; i < nobuffs; ++i) printk("scsi%d : buffer %d address = %p length = %d\n", hostno, i, - page_address(buffer[i].page) + buffer[i].offset, + sg_virt(&buffer[i]), buffer[i].length); } #endif buffer = (struct scatterlist *) SCint->request_buffer; len = buffer->length; - data = page_address(buffer->page) + buffer->offset; + data = sg_virt(buffer); } else { DPRINTK (DEBUG_SG, "scsi%d : scatter gather not requested.\n", hostno); buffer = NULL; @@ -1239,7 +1239,7 @@ connect_loop: --nobuffs; ++buffer; len = buffer->length; - data = page_address(buffer->page) + buffer->offset; + data = sg_virt(buffer); DPRINTK (DEBUG_SG, "scsi%d : next scatter-gather buffer len = %d address = %08x\n", hostno, len, data); @@ -1396,7 +1396,7 @@ connect_loop: --nobuffs; ++buffer; len = buffer->length; - data = page_address(buffer->page) + buffer->offset; + data = sg_virt(buffer); DPRINTK (DEBUG_SG, "scsi%d : next scatter-gather buffer len = %d address = %08x\n", hostno, len, data); } break; diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 7238b2d..cc19710 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1169,7 +1169,7 @@ sg_vma_nopage(struct vm_area_struct *vma, unsigned long addr, int *type) len = vma->vm_end - sa; len = (len < sg->length) ? len : sg->length; if (offset < len) { - page = virt_to_page(page_address(sg->page) + offset); + page = virt_to_page(page_address(sg_page(sg)) + offset); get_page(page); /* increment page count */ break; } @@ -1717,13 +1717,13 @@ st_map_user_pages(struct scatterlist *sgl, const unsigned int max_pages, goto out_unlock; */ } - sgl[0].page = pages[0]; + sg_set_page(sgl, pages[0]); sgl[0].offset = uaddr & ~PAGE_MASK; if (nr_pages > 1) { sgl[0].length = PAGE_SIZE - sgl[0].offset; count -= sgl[0].length; for (i=1; i < nr_pages ; i++) { - sgl[i].page = pages[i]; + sg_set_page(&sgl[i], pages[i]); sgl[i].length = count < PAGE_SIZE ? count : PAGE_SIZE; count -= PAGE_SIZE; } @@ -1754,7 +1754,7 @@ st_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_pages, int i; for (i=0; i < nr_pages; i++) { - struct page *page = sgl[i].page; + struct page *page = sg_page(&sgl[i]); if (dirtied) SetPageDirty(page); @@ -1854,7 +1854,7 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size) scatter_elem_sz_prev = ret_sz; } } - sg->page = p; + sg_set_page(sg, p); sg->length = (ret_sz > num) ? num : ret_sz; SCSI_LOG_TIMEOUT(5, printk("sg_build_indirect: k=%d, num=%d, " @@ -1907,14 +1907,14 @@ sg_write_xfer(Sg_request * srp) onum = 1; ksglen = sg->length; - p = page_address(sg->page); + p = page_address(sg_page(sg)); for (j = 0, k = 0; j < onum; ++j) { res = sg_u_iovec(hp, iovec_count, j, 1, &usglen, &up); if (res) return res; for (; p; sg = sg_next(sg), ksglen = sg->length, - p = page_address(sg->page)) { + p = page_address(sg_page(sg))) { if (usglen <= 0) break; if (ksglen > usglen) { @@ -1991,12 +1991,12 @@ sg_remove_scat(Sg_scatter_hold * schp) } else { int k; - for (k = 0; (k < schp->k_use_sg) && sg->page; + for (k = 0; (k < schp->k_use_sg) && sg_page(sg); ++k, sg = sg_next(sg)) { SCSI_LOG_TIMEOUT(5, printk( "sg_remove_scat: k=%d, pg=0x%p, len=%d\n", - k, sg->page, sg->length)); - sg_page_free(sg->page, sg->length); + k, sg_page(sg), sg->length)); + sg_page_free(sg_page(sg), sg->length); } } kfree(schp->buffer); @@ -2038,7 +2038,7 @@ sg_read_xfer(Sg_request * srp) } else onum = 1; - p = page_address(sg->page); + p = page_address(sg_page(sg)); ksglen = sg->length; for (j = 0, k = 0; j < onum; ++j) { res = sg_u_iovec(hp, iovec_count, j, 0, &usglen, &up); @@ -2046,7 +2046,7 @@ sg_read_xfer(Sg_request * srp) return res; for (; p; sg = sg_next(sg), ksglen = sg->length, - p = page_address(sg->page)) { + p = page_address(sg_page(sg))) { if (usglen <= 0) break; if (ksglen > usglen) { @@ -2092,15 +2092,15 @@ sg_read_oxfer(Sg_request * srp, char __user *outp, int num_read_xfer) if ((!outp) || (num_read_xfer <= 0)) return 0; - for (k = 0; (k < schp->k_use_sg) && sg->page; ++k, sg = sg_next(sg)) { + for (k = 0; (k < schp->k_use_sg) && sg_page(sg); ++k, sg = sg_next(sg)) { num = sg->length; if (num > num_read_xfer) { - if (__copy_to_user(outp, page_address(sg->page), + if (__copy_to_user(outp, page_address(sg_page(sg)), num_read_xfer)) return -EFAULT; break; } else { - if (__copy_to_user(outp, page_address(sg->page), + if (__copy_to_user(outp, page_address(sg_page(sg)), num)) return -EFAULT; num_read_xfer -= num; diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 73c44cb..ce69b9e 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3797,7 +3797,7 @@ static void buf_to_sg(struct st_buffer *STbp, unsigned int length) sg = &(STbp->sg[0]); frp = STbp->frp; for (i=count=0; count < length; i++) { - sg[i].page = frp[i].page; + sg_set_page(&sg[i], frp[i].page); if (length - count > frp[i].length) sg[i].length = frp[i].length; else @@ -4446,14 +4446,14 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa } /* Populate the scatter/gather list */ - sgl[0].page = pages[0]; + sg_set_page(&sgl[0], pages[0]); sgl[0].offset = uaddr & ~PAGE_MASK; if (nr_pages > 1) { sgl[0].length = PAGE_SIZE - sgl[0].offset; count -= sgl[0].length; for (i=1; i < nr_pages ; i++) { + sg_set_page(&sgl[i], pages[i]);; sgl[i].offset = 0; - sgl[i].page = pages[i]; sgl[i].length = count < PAGE_SIZE ? count : PAGE_SIZE; count -= PAGE_SIZE; } @@ -4483,7 +4483,7 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p int i; for (i=0; i < nr_pages; i++) { - struct page *page = sgl[i].page; + struct page *page = sg_page(&sgl[i]); if (dirtied) SetPageDirty(page); diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c index 4aafe89..2dcde37 100644 --- a/drivers/scsi/sun3_NCR5380.c +++ b/drivers/scsi/sun3_NCR5380.c @@ -272,8 +272,7 @@ static struct scsi_host_template *the_template = NULL; #define HOSTNO instance->host_no #define H_NO(cmd) (cmd)->device->host->host_no -#define SGADDR(buffer) (void *)(((unsigned long)page_address((buffer)->page)) + \ - (buffer)->offset) +#define SGADDR(buffer) (void *)(((unsigned long)sg_virt(((buffer))))) #ifdef SUPPORT_TAGS diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c index 8befab7..90cee94 100644 --- a/drivers/scsi/sym53c416.c +++ b/drivers/scsi/sym53c416.c @@ -196,7 +196,7 @@ static unsigned int sym53c416_base_3[2] = {0,0}; #define MAXHOSTS 4 -#define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset)) +#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer))) enum phases { diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 5c72ca3..4419304 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -430,10 +430,7 @@ static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_ static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length) { - memset(sg, 0, sizeof(struct scatterlist)); - sg->page = virt_to_page(addr); - sg->length = length; - sg->offset = (unsigned long)addr & ~PAGE_MASK; + sg_init_one(sg, addr, length); return sg; } diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c index ea72bbe..6d1f0ed 100644 --- a/drivers/scsi/ultrastor.c +++ b/drivers/scsi/ultrastor.c @@ -681,7 +681,7 @@ static inline void build_sg_list(struct mscp *mscp, struct scsi_cmnd *SCpnt) max = scsi_sg_count(SCpnt); scsi_for_each_sg(SCpnt, sg, max, i) { - mscp->sglist[i].address = isa_page_to_bus(sg->page) + sg->offset; + mscp->sglist[i].address = isa_page_to_bus(sg_page(sg)) + sg->offset; mscp->sglist[i].num_bytes = sg->length; transfer_length += sg->length; } diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c index 0e8e642..fdbb92d 100644 --- a/drivers/scsi/wd33c93.c +++ b/drivers/scsi/wd33c93.c @@ -410,8 +410,7 @@ wd33c93_queuecommand(struct scsi_cmnd *cmd, if (cmd->use_sg) { cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer; cmd->SCp.buffers_residual = cmd->use_sg - 1; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); cmd->SCp.this_residual = cmd->SCp.buffer->length; } else { cmd->SCp.buffer = NULL; @@ -745,8 +744,7 @@ transfer_bytes(const wd33c93_regs regs, struct scsi_cmnd *cmd, ++cmd->SCp.buffer; --cmd->SCp.buffers_residual; cmd->SCp.this_residual = cmd->SCp.buffer->length; - cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + - cmd->SCp.buffer->offset; + cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); } if (!cmd->SCp.this_residual) /* avoid bogus setups */ return; diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index 255c611..03cd44f 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1123,7 +1123,7 @@ static int wd7000_queuecommand(struct scsi_cmnd *SCpnt, any2scsi(scb->maxlen, nseg * sizeof(Sgb)); scsi_for_each_sg(SCpnt, sg, nseg, i) { - any2scsi(sgb[i].ptr, isa_page_to_bus(sg->page) + sg->offset); + any2scsi(sgb[i].ptr, isa_page_to_bus(sg_page(sg)) + sg->offset); any2scsi(sgb[i].len, sg->length); } } else { |
